Board Thread:Pokémon Help/@comment-31398341-20171026040947/@comment-31398341-20171111161613

Robepriority wrote: Marshadow can be checked with a fairy physical wall, or Mega Loppuny, which I personally deem cheesy, but it works.

I found the most consistent answer to luigia would be a physical sweeper, due to the popularity of CM sets. Bisharp to be specific, since it is immune to Psychic and resists Flying and Ice which Lugia tends to carry. It also cannot be affected by Toxic.

Only thing that can perfectly counter Marshadow is Toxapex because it can switch in and can never be 2HKOed by any of the moves. It can use Haze to remove Marshadow's stats boosts too.